I had to remove the governor arm to get a straight shot at the phillips head screw, it screwed in but was a little stiff going in as if the threads were somewhat boogered. I reset the governor arm , played with the springs and throttle cable to get max speed, and it still is not running up to par.. I have a feeling the rings might have been cooked by my buddy who wwas mowing with it in pretty warm TX weather last year.(He also let the air filter plug up really bad and dirt was getting in the cylinder according to what I saw when I pulled the filter..)
As it runs the top speed slows down, and it starts to fog the area with smoke, Idling it down makes a cloud of smoke rings, blue oil smoke........This is not good..
I am going to change the oil, maybe run some MMO in the gas, and see if that helps, but I don't have a good feeling about this.